Fan



FIG. 1 is a front elevational view of a fan showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is an end elevational view thereof taken along the line 3--3 in FIG. 1; and

FIG. 4 is an end elevational view thereof taken along the line 4--4 in FIG. 1. 

The ornamental design of a fan, substantially as shown. 